The IHA is the International Hedgehog Association. You can officially register your hedgehog with them, and if you have a hedgehog's pedigree, you can check with the IHA, who looks up the hedgehogs in your hedgehog's ancestry and can tell you how they died, whether it was from WHS or something else. The reason you want to check on this is to make sure that there's no WHS (Wobbly Hedgehog Syndrome) in either one's background. It's a heartbreaking genetic disease that, if the hedgehog ends up having it, appears anywhere from 18 months to 2-3 years and it progressively paralyzes your hedgehog.
There's no cure for it so far, and the only way we know to deal with it is to avoid breeding any hedgehogs that have signs of it in their background. That's why people stress having a pedigree to check so much - no one wants to see people or hedgehogs to have to deal with something so hard. It ultimately comes down to you on whether you want to breed your hedgehog or not, but please do consider the possible consequences of not having the pedigrees to double-check. I just posted this, if you're interested in reading, on things to consider in general when thinking about breeding - viewtopic.php?f=25&t=19339
Also make sure to do lots of research! I apologize if that seems like an obvious thing to do, but we get a lot of people who come in without having done any and usually it's the hedgehogs (mama & babies) who suffer. Even if your friend is doing lots of research, you'll want to make sure you do too. After all, it's your girl who's most at risk, not the male. There's lots to know about breeding hedgehogs, even if you're only doing it once. There's a lot of information in this section of the forum (Breeding & Babies) that's good to go through, and it'd be good to keep in contact with your breeder and see if she's willing to be available for any late-night calls and such in case of issues.